Compilare: main.cpp: In function 'void DFS2(int, int)': main.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < Ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~ main.cpp:42:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<Ad[nod].size(); ++j) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:74:7: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(j=1;j<=viz[i];j++) ^~~ main.cpp:76:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' nr=nr%666013; ^~